python-oop/day 1.py at main · muin360/python-oop · GitHub

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class Student:
    def __init__(self, name, age, marks):
        self.name = name
        self.age = age
        self.marks = marks

    def show_info(self):
        print(f"Name: {self.name}, Age: {self.age}, Marks: {self.marks}")

    def is_adult(self):
        if self.age >= 18:
            print(f"{self.name} is an Adult")
        else:
            print(f"{self.name} is a Minor")

    def calculate_grade(self):
        if self.marks >= 80:
            grade = "A+"
        elif self.marks >= 70:
            grade = "A"
        elif self.marks >= 60:
            grade = "A-"
        elif self.marks >= 50:
            grade = "B+"
        elif self.marks >= 40:
            grade = "C"
        elif self.marks >= 33:
            grade = "D"
        else:
            grade = "F"

        print(f"{self.name}'s Grade: {grade}")


s1 = Student("Arefin", 18, 99)
s2 = Student("Rahim", 21, 70)
s3 = Student("Sifat", 17, 33)

students = [s1, s2, s3]

for s in students:
    s.show_info()
    s.is_adult()
    s.calculate_grade()
    print()